Death of a hero ignites a conflict between members of the Justice League, Justice League Dark, and the Justice League of America! As the League go to battle sin and the secrets of the mysterious Trinity Pandora and her skull-Shaped Box are brought to light.

Marvel Preview was a magazine-sized black-and-white showcase comic book published by Curtis Magazines, an imprint of Marvel. (The final issue was published by the Marvel Magazines Group, another Marvel imprint.)